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Comprehensive Guide to Serial Port Programming in C for 2026
"Serial port programming in C involves interacting directly with hardware communication interfaces using system calls like open, read, write, and ioctl, primarily via the termios structure on POSIX-compliant operating systems. This low-level approach allows developers to configure baud rates, data bits, parity, and flow control for reliable asynchronous data transmission. Communication with microcontrollers, industrial machinery, GPS modules, and legacy embedded systems requires a firm grasp of hardware interfaces. While modern software frequently relies on high-level abstractions like USB, Ethernet, or wireless protocols, the physical univers..."
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